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Aleksey Yeschenko updated CASSANDRA-7252: ----------------------------------------- Fix Version/s: (was: 2.0.7) 2.0.9 > RingCache cannot be configured to use local DC only > --------------------------------------------------- > > Key: CASSANDRA-7252 > URL: https://issues.apache.org/jira/browse/CASSANDRA-7252 > Project: Cassandra > Issue Type: Bug > Components: Hadoop > Reporter: Robbie Strickland > Assignee: Jonathan Ellis > Labels: patch > Fix For: 2.0.9 > > Attachments: cassandra-2.0.7-7252-2.txt, cassandra-2.0.7-7252.txt > > > RingCache always calls describe_ring, returning the entire cluster. > Considering it's used in the context of writing from Hadoop (which is > typically in a multi-DC configuration), this is often not desirable behavior. > In some cases there may be high-latency connections between the analytics DC > and other DCs. > I am attaching a patch that adds an optional config value to tell RingCache > to use local nodes only, in which case it calls describe_local_ring instead. > It also adds helpful failed host information to IOExceptions thrown in > AbstractColumnFamilyOutputFormat.createAuthenticatedClient, CqlRecordWriter, > and ColumnFamilyRecordWriter. This allows a user to more easily solve > related connectivity issues. -- This message was sent by Atlassian JIRA (v6.2#6252)